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United States › Power plants › Oil-fired power plants › Connecticut

OIL-FIRED POWER PLANTS · HYDROELECTRIC PLANTS

Tunnel

Tunnel is a 20.5 MW operating power plant in New London County, Connecticut, operated by FirstLight Power Resources Services LLC.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingJan 1919 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
10Petroleum Liquids19 MW Standby / back-upJan 1969
1Conventional Hydroelectric1.0 MW OperatingJan 1919
2Conventional Hydroelectric1.0 MW OperatingJan 1949

Plant details

Operator
FirstLight Power Resources Services LLC
Location
New London County, Connecticut
Balancing authority
ISNE
Sector
IPP Non-CHP
Capacity
Operating: 20.5 MW
First unit online
Jan 1919
EIA plant ID
557

Location

41.5554, -72.0418

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem